Abstract
BSCCO tpaes with insulating ceramic barriers such as Zr$O_{2}$, $Al_{2}$$CO_{3}$, and Sr$CO_{3}$ were fabricated and their electrical properties were evaluated. Each filament was dip coated with ceramic slurries and then made 19 multifilamentary tapes by the “powder-in-tube” process. Microstructural investigation showed that filaments were completely decoupled each other and had a significant sausage effect. The critical current of coated tapes was reduced compared to that of non coated one, and its reduction was varied with the coating materials. For tapes with coated with Sr$CO_{3}$, the critical current was measured to be 7.2 A which was 44% reduction to that of non coated one. This reduction is believed to be due to the formation of sausage effect and non-uniform microstructure.
